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SITCSection 2
U.S. imports of slate, roughly trimmed or cut into square or rectangular blocks or slabs (SITC 27311) totaled $146K in April 2026, traded with 4 countries.
Importers of Slate, Roughly Trimmed or Cut into Square or Rectangular Blocks or Slabs paid $35K in duties in April 2026 — an effective duty rate of 24% on $146K in dutiable value, based on actual customs collections rather than the published tariff schedule. Slate, Roughly Trimmed or Cut into Square or Rectangular Blocks or Slabs imports of $146K in April 2026 ran 15% above the year-to-date monthly average of $127K.
Last updated: April 2026 dataSlate in block or slab form — whether rough-trimmed or cut by sawing into square or rectangular shapes — enters US trade primarily as a construction and architectural material valued for its natural cleavage, durability, and aesthetic finish. The heading captures material at an early processing stage: further worked, polished, or dimensioned slate products are classified under finished stone headings. Roofing slate, flooring tile blanks, and cladding slabs are the dominant commercial forms at this stage. Importers should note that the degree of surface working and dimensional precision determines whether goods remain in this heading or advance to a more finished stone classification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Slate that has been further worked beyond rough trimming or basic sawing — for example, by surface polishing, beveling, or cutting to non-rectangular shapes — typically advances to headings covering worked monumental or building stone. The boundary is whether the processing has added significant value beyond basic dimensional cutting, which should be evaluated against the specific HTS chapter notes.
Slate is a natural stone product and is not among the steel or aluminum articles subject to Section 232 tariffs. However, importers should verify current trade-remedy orders through CBP's ADCVD database, as antidumping or countervailing duty orders on specific stone products from particular origins can change. A licensed customs broker can confirm the current order status for the specific origin and product.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $83K | -- | -$83K |
| INDIA | $43K | -- | -$43K |
| BRAZIL | $20K | -- | -$20K |
| UNITED KINGDOM | -- | $18K | +$18K |
| CANADA | -- | $5K | +$5K |